Blue-printing machine.



PATENTED OCT- 22. 1907.

L. M. BASH. BLUE PRINTING MACHINE.

APPLIQATIOI FILED AUG. 7, 1906.

BATENT OFFICE.

LEONARD M. BASH, OF LOS ANGELES, CALIFORNIA.

BLUE-PRINTING MACHINE.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed August 7,1906. Serial No. 329,630.

To all whom it may concern:

le it known that I, LEONARD i\'[. RAsn, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Blue-Printing Machines, of which the following is a specification.

In manufacturing glass cylinders of comparatively large diameters, it has been found that it is commercially impossible to blow a cylinder that will be true in all respects. In some that are blown the diameters vary so greatly that when one is rigidly secured in a machine of which it forms an operative part, the strain on the cylinder caused by the operation of the machine often causes it to break.

My invention relates primarily to means for securing rotative glass cylinders in place in a blue-printing machine, and an object thereof is to provide a securing device that will allow of longitudinal and transverse movements of the cylinder without injury thereto. I accomplish this object by means of the device described herein. and illustrated in the accompanying drawings forming part of this specification in which Figure .fis a side elevation of a portion of a blueprinting machine with the cylinder secured in place thereon by means of my improved device. Fig. 2- is a transverse section of a cylinder with my securing device applied thereto. Fig. 3 is an enlarged sectional detail of a portion of the glass cylinder and its securing means. Fig. 4 is an enlarged sectional detail of the bearing on which the cylinder rotates and a portion of a reflector and supporting means therefor.

Referring to the drawings 5 indicates a portion of the frame of blue-printing machine, which has bearings fi. Rotatively mounted on hollow bearings (5 are spiders '7 which have annular rims 8. Mounted transversely between these spiders is a transparent cylinder 9, which is secured to the spiders by my improved securing device, which preferably consists of an annular elastic band or cushion 1]., preferably of sponge rubber or other soft yielding material. Rigidly secured to the rims of the spiders are a plurality of flexible lugs or fingers 12 which project outwardly and are then bent inwardly. An annular metallic securing band 13 is held in yielding engagement with the annular cushion ll by means of coiled springs 14, one end of which is attached to the metallic band, the other end of the springs being bent to form eyes 15 which engage hooks 16 secured to the other end of the metallic bands. Secured to the periphery of the metallic bands 13 are adjustable loops 1? in which are received the ends of lugs 12.

Preferably formed integral with each of the hollow bearings ii are artificial light supporting arms 18 which project downwardly into the interior of the transparent cylinder at each end and are adapted to support a plurality of reflectors 19. Detachablysecured in any well known manner to the under side of these reflectors are artificial lights 20, preferably mercury vapor lamps. The bearings 6 of the supporting arms 18 are hollow so that electrical connections can be made with the lamps and on their outer ends are inwardly turned ledges 21, in the center of which are upwardly projecting lugs 22 which have in their upper ends transverse notches 23 for the reception of the securing pins 24.

The reflectors hereinbefore referred to preferably consist of sheet metal segmental in form and extend from one end of the cylinder to the other and rest on the ledges 21 of the supporting brackets 18. These re flectors have longitudinal ribs 25 which extend a short distance beyond the reflectors at either end, and the transverse lugs 24 projecting from each end of each of the ribs 25 are adapted to enter the notches 23 in the lugs 22 secured to the inwardly turned ledges 21 of the supporting arms 18. Ribs 25 have handles 27 for the convenience of handling the reflectors and the lamps attached thereto.

It will be seen from the foregoing description that I have produced a device that is capable of accommodating itself to any unevenness that may exist in the cylinder, the flexible fingers and loops secured to the metallic bands providing for any longitudinal or transverse movement of the cylinder and the spring connected metallic bands providing for its expansion or contraction.

Having described my invention what I claim is:

1. In a device of the characterherein described. a frame; bearings mounted in said frame; spiders revolubly mounted on said bearings; a rotative translucent cylinder and yielding means secured upon the periphery of said 'cylinder at each end thereof in engagement with said spiders whereby the cylinder is yicldingly secured in the machine.

2. In a device of the character herein described, a frame; bearings mounted in said frame: spiders having annular rims revolubly mounted on said bearings; a lo f'ative translucent cylinder; a plurality of inwardly projectinp; lugs secured to the rims of said spiders; and yield ingengaging means secured to the periphery of said cylinder adapted to slidingly engage the lugs on said spiders whereby the cylinder is yieldingly secured in the machine.

3.111 a device of the character herein described, a frame; bearings mounted in said frame; spiders having annular rims rcvolubly mounted on said bearings; a pinrality of inwardly projecting lugs secured to the rims of said spiders; a rotative translucent cylinder: bands surrounding said cylinder having the ends thereof held by spring pressure; a plurality of loops secured to said bands adapted to re 'istcr with and engage the lugs on said spiders; and elastic cushions interposed between said bands and cylinder.

-'f. In a device of the character herein described, a frame; bearings mounted in said frame: spiders having annular rims rcvolubly mounted on said bearin a plurality of inwardly projecting flexible fingers secured to the rims of said spiders: a rotativc translucent cylinder: adjustablc metallic bands surrounding said cylinder at each end thereof: coiled springs uniting the ends of said hands; a plurality of loops secured to said bands adapted to register with and engage the flexible fingers on said spiders; and elastic cushions interposed between said bands and cylinder.

'5. A machine of the class described, comprising a frame; hollow bearings mounted in said frame; radially extending arms secured to said bearing; and a plurality of reflectors eachhaving an artificial light attached thereto, said reflectors being detachably secured to the outer ends of said radial arms.

6. A machine of the class described, comprising a frame; hollow bearings secured to said frame; radially extending arms secured to said bearings, said arms having a series of segmental flanges; and a plurality of segmental reflectors each having an artificial light secured thereto, said reflectors being detachably secured to the segmental flanges of said radial arms.

7. A machine of the class described, comprising a frame; hollow bearings secured to said frame; radially extending arms secured to said bearings, said arms having a series of inwardly turned segmental flanges with a plurality of notched lugs on their upper surfaces; a plurality of segmental reflectors having longitudinal ribs on their upper surfaces, said ribs extending over the ends thereof and having lugs transversely secured to their outer ends adapted to enter the notches in the lugs on the segmental flanges; and an artificial light secured to each of said reflectors.

In witness that I claim the foregoing I have hereunto subscribed my name this 1st. day of August,l1906.

LEONARD M. RASH.

Witnesses EDMUND A. STRAUSE, HENRY '1. HAZARD. 

